A money transmitter is any business that accepts money, or anything that stands in for money, from one person and sends that value to another person or another location. The definition comes from the U.S. Treasury’s Financial Crimes Enforcement Network (FinCEN), and it is deliberately broad: the method doesn’t matter, the technology doesn’t matter, and what the business calls itself doesn’t matter. If the activity fits, the classification applies, and it brings with it federal registration, an anti-money laundering program, and, in 49 states plus the District of Columbia, a separate state license.
The Federal Two-Part Test
FinCEN’s regulation asks two questions. Does the business accept money or a substitute for money from one person? Does it send that value to a different person or location by any means? If both answers are yes, the business is a money transmitter under federal law.1eCFR. 31 CFR 1010.100 – General Definitions
“Any means” is meant to sweep in every channel. Electronic networks, bank-to-bank rails, apps, clearinghouses, and informal transfer arrangements all count. The mechanism is irrelevant; the movement of value between parties, as a business activity, is what triggers the label.1eCFR. 31 CFR 1010.100 – General Definitions
The phrase “value that substitutes for currency” is where enforcement has moved most aggressively. In 2019, FinCEN confirmed that administrators and exchangers of convertible virtual currency are generally treated as money transmitters. Users who simply buy or spend crypto for their own purposes are not.2Financial Crimes Enforcement Network (FinCEN). FinCEN Guidance, FIN-2019-G001, May 9, 2019
FinCEN calls this a “facts and circumstances” determination. A business doesn’t have to intend to be a money transmitter or describe itself as one. If the activity fits, the classification attaches automatically.
Activities That Fall Inside the Definition
Wire transfer companies and international remittance providers are the textbook examples: cash comes in from a sender, funds go out to a recipient somewhere else, usually for a per-transaction fee. Bill payment services fit too, because they sit between a consumer and a creditor and forward the consumer’s payment.
Cryptocurrency businesses are the fastest-growing category. Any exchange that converts digital assets to government-backed currency, or the reverse, is transmitting money. So is a platform that lets users send crypto to another user’s wallet. FinCEN treats these operations the same as a traditional wire transfer storefront, even though the underlying technology is entirely different.2Financial Crimes Enforcement Network (FinCEN). FinCEN Guidance, FIN-2019-G001, May 9, 2019
Digital wallets and mobile payment apps that let users load a balance and then send it to other users are engaged in money transmission. The critical question is whether funds can move between users. A closed-loop gift card usable only at one retailer is a different animal from a wallet that lets you send $50 to a friend.
Online marketplaces are the gray-area case. If a platform collects payment from a buyer, holds it, and later disburses it to the seller, it is accepting and transmitting funds. Whether an exemption applies depends on the settlement systems used and the contractual relationships involved. Payment flows have to be structured carefully if the platform wants to stay outside the classification.
Who Is Not a Money Transmitter
Banks and credit unions sit entirely outside the money services business framework. They have their own regulatory regime and are excluded from the MSB rules altogether.3eCFR. 31 CFR Part 1010 – General Provisions
For non-bank businesses, the regulation carves out six specific exemptions:
- Network and technology providers whose only role is supplying communication lines, internet access, or software infrastructure to a money transmitter.
- Payment processors that facilitate purchases or bill payments through a clearance and settlement system under an agreement with the seller or creditor.
- Clearinghouse operators that run settlement systems exclusively between institutions already regulated under the Bank Secrecy Act.
- Armored car and physical transport services carrying cash or value from one location to another for the same person, holding only a custodial interest in transit.
- Prepaid access providers meeting certain conditions.
- Businesses that accept and transmit funds only as an integral part of selling their own goods or services.
The payment processor exemption generates the most questions and is the most easily lost. FinCEN requires that the payment be for goods or services rather than for money transmission itself, that the processor use a settlement system limited to BSA-regulated financial institutions, that a formal agreement exist, and that the agreement be with the seller or creditor receiving the funds.2Financial Crimes Enforcement Network (FinCEN). FinCEN Guidance, FIN-2019-G001, May 9, 2019 A company that disburses merchant payments outside a regulated settlement system loses the exemption.4Financial Crimes Enforcement Network. Application of Money Services Business Regulations to a Company Acting as an Independent Sales Organization and Payment Processor
The exemptions are read narrowly. A business that mostly fits an exemption but adds features outside its scope can lose the protection entirely. When there is doubt, FinCEN defaults to classification as a money transmitter.
What Federal Classification Requires
Registration With FinCEN
Every money transmitter must register with FinCEN by filing Form 107 within 180 days of starting operations. The form asks about ownership, headquarters, and the number of agents or branches. FinCEN doesn’t approve or deny the filing; it adds the business to the federal MSB registry. Registration is not a license, and it is not optional.5FinCEN.gov. Money Services Business (MSB) Registration
A Written Anti-Money Laundering Program
Under the Bank Secrecy Act, every money transmitter must build and maintain a written anti-money laundering (AML) program scaled to its size, location, and transaction profile. The regulation sets four minimum requirements:6eCFR. 31 CFR Part 1022 – Rules for Money Services Businesses
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The program has to be in writing and available for Treasury inspection on request.7Internal Revenue Service. Bank Secrecy Act
Reporting Thresholds
Three reporting rules do most of the day-to-day work. A Suspicious Activity Report is required for any transaction of $2,000 or more when the business knows, suspects, or has reason to suspect the transaction involves illegal proceeds, is designed to evade BSA rules, or has no apparent lawful purpose. The threshold applies to patterns of transactions, not just single transfers.8eCFR. 31 CFR 1022.320 – Reports by Money Services Businesses9Financial Crimes Enforcement Network. A Quick Reference Guide for Money Services Businesses
A Currency Transaction Report is required for any cash transaction over $10,000 in a single business day. Multiple transactions by the same person that add up to more than $10,000 in one day must be aggregated.10Financial Crimes Enforcement Network. Fact Sheet for the Industry on MSB Suspicious Activity Reporting Rule
The “travel rule” applies to any transfer of $3,000 or more. The transmitter must collect and pass along specific information about the sender and recipient, including names, addresses, account numbers, the transfer amount and date, and the recipient’s financial institution.11eCFR. 31 CFR 1010.410 – Records To Be Made and Retained by Financial Institutions
Recordkeeping
Records required under the Bank Secrecy Act must be kept for five years and stored so they remain reasonably accessible. Law enforcement can request them at any point during that period.12eCFR. 31 CFR 1010.430 – Nature of Records and Retention Period
State Licensing on Top of Federal Registration
Federal registration is the first layer, not the last. Forty-nine states and the District of Columbia require a separate money transmitter license, each with its own application, fees, and ongoing conditions. Montana is the only state without a money transmitter licensing law. A business serving customers in multiple states needs a license in each one.
The Multistate MSB Licensing Agreement Program, run through the Nationwide Multistate Licensing System (NMLS), lets applicants submit core documentation once for a “Phase One” review by a single state and then complete state-specific requirements in “Phase Two” for each additional state. It reduces duplication, but the full process still takes months and real resources.13NMLS State Resource Center. Multistate MSB Licensing Agreement Program
State applications typically require audited financial statements showing a minimum net worth, a surety bond backing consumer funds, and detailed background checks on principals, including fingerprinting, FBI criminal history, and credit reports. A record of financial fraud or certain felonies can disqualify a company’s leadership from obtaining a license. Bond amounts and net worth thresholds vary widely by state, and bonds must remain active throughout the life of the license.
Licenses require annual renewal. The NMLS renewal window runs from November 1 through December 31. A reinstatement period runs through the end of February, but operating on a lapsed license during that gap creates serious legal exposure.14NMLS Licensing Guides. NMLS Annual Renewal Overview for Companies
Extra Rules for International Remittances
Money transmitters that send international remittances face additional consumer protection rules under Regulation E, enforced by the Consumer Financial Protection Bureau. Domestic transmitters that don’t handle cross-border consumer remittances don’t take on this layer, so if your service is purely domestic, the disclosures below aren’t yours to worry about.
For covered remittances, the transmitter must disclose the exchange rate, its own fees, any known third-party fees, and a statement that other institutions’ fees may reduce what the recipient actually receives. Exchange rates must be shown to at least two decimal places, and any estimated figure must be clearly labeled as such.15Consumer Financial Protection Bureau. Disclosures (Section 1005.31)
A sender can cancel a remittance and receive a full refund, including fees, if the cancellation reaches the provider within 30 minutes of payment and the recipient has not yet received the funds. Refunds are due within three business days of the request.16eCFR. 12 CFR 1005.34 – Procedures for Cancellation and Refund of Remittance Transfers Senders have 180 days from the disclosed delivery date to report an error, and providers have 90 days to investigate and respond.17eCFR. 12 CFR 1005.33 – Procedures for Resolving Errors
Penalties for Getting It Wrong
Running an unlicensed money transmitting business is a federal crime under 18 U.S.C. ยง 1960, punishable by up to five years in prison, a fine, or both. Prosecutors do not have to prove the operator knew a license was required. Operating without one in a state that requires licensing is enough.18Office of the Law Revision Counsel. 18 USC 1960 – Prohibition of Unlicensed Money Transmitting Businesses
On the civil side, failing to register with FinCEN carries penalties of up to $5,000 per violation, with each day of noncompliance counting as a separate violation.19Office of the Law Revision Counsel. 31 USC 5330 – Registration of Money Transmitting Businesses
States add their own penalties. Most treat unlicensed money transmission as a felony, and regulators can pursue cease-and-desist orders, civil fines, and disgorgement of profits earned during the unlicensed period. Because each state enforces independently, a company operating across several states without licenses can face parallel investigations from every jurisdiction involved.